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https://issues.apache.org/jira/browse/DRILL-6152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16361720#comment-16361720
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Paul Rogers commented on DRILL-6152:
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Only for multi-line quoted processing. Single-line quotes are fine with splits.
Originally Drill did not support multi-line comments. I think I "fixed" that in
response to a bug, but I later realized that the result is not splittable.
> For CSV and TSV files splitting should be disabled in case of quoted
> processing
> -------------------------------------------------------------------------------
>
> Key: DRILL-6152
> URL: https://issues.apache.org/jira/browse/DRILL-6152
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Vlad Rozov
> Priority: Major
>
> With quoted processing enabled it is not possible to process csv or tsv file
> from an arbitrary offset. Consider a case where a csv file is split inside a
> quoted string that contains a line feed. As beginning quote is part of
> another split, line feed would be recognized as a regular line feed instead
> of a line feed inside quotes.
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